# File lib/phusion_passenger/utils/file_system_watcher.rb, line 165
                        def changed?(check_mtime = true)
                                new_stat = File.stat(@filename)
                                if check_mtime
                                        mtime_changed = @stat.mtime != new_stat.mtime || @stat.size != new_stat.size
                                else
                                        mtime_changed = false
                                end
                                return @stat.ino != new_stat.ino || @stat.ftype != new_stat.ftype || mtime_changed
                        rescue Errno::EACCES, Errno::ENOENT
                                return true
                        end